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Grade 8–9 · Data Handling
Mean, Median, Mode and Range: Complete Guide
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  / 29

Answer all questions. Show all your working — marks are awarded for method as well as the final answer.

  1. 1
    The mean of 7, 11, 9, 13 and x is 11. Solve for x.
    (3)
  2. 2
    The mean of 14, 22, 18 and x is 20. Solve for x.
    (3)
  3. 3
    The mean of 8, 10, 15, 9 and x is 12. Solve for x.
    (3)
  4. 4
    Find the mean of 3, 5, 10, 2 (mean)
    (2)
  5. 5
    Find the mean of 12, 15, 18, 15 (mean)
    (2)
  6. 6
    Find the median of 8 ; 3 ; 9 ; 5 ; 6 (median, odd)
    (1)
  7. 7
    Find the median of 4 ; 10 ; 6 ; 8 (median, even)
    (2)
  8. 8
    Find the mode of 2, 4, 4, 4, 7, 9 (mode)
    (1)
  9. 9
    Find the range of 15, 22, 9, 30 (range)
    (1)
  10. 10
    The mean of 4, 8, x, 6 is 7. Find x. (missing value)
    (3)
  11. 11
    The mean of 5 numbers is 12. What is their total? (work back)
    (2)
  12. 12
    Data: 6, 6, 7, 8, 40. Which is more typical, mean or median? (outlier)
    (2)
  13. 13
    Find all four (mean, median, mode, range) for 2, 3, 3, 6 (all four)
    (4)
TOTAL: 29 marks
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